Facebook Disconnect will “presumably” prevent the sending of data back to Facebook across the one million sites that use the Facebook Connect service. So far the ones I’ve tested it on (ehem, Huffington Post) seem to be kosher as I no longer see Facebook integration.

Kennish says he created the extension to help quell his desire to delete his Facebook account and that he’s tested it out successfully across a sizable amount of previously Facebook-Connectable sites, including our own (screen shots above) with absolutely no encouragement from Google or Facebook, despite the fact that he works for the former, “Nobody at Google asked or encouraged me to do so, or probably, even knows who I am.”